分离CO2固定载体膜工业化制备技术
作者:王树清,乔志华,王志
单位: 天津大学化工学院化学工程研究所,天津化学化工协同创新中心,化学工程联合国家重点实验室(天津大学),天津市膜科学与海水淡化技术重点实验室,天津 300072
关键词: 固定载体膜;工业化制备技术;聚乙烯基胺-哌嗪;CO2渗透选择性能
出版年,卷(期):页码: 2016,36(5):87-94

摘要:
 为实现CO2分离膜的大规模工业应用,本文开发了分离CO2固定载体膜的工业化制备技术,具体包括以下两部分内容。第一,研制了工业规模连续化制膜装置,利用该装置规模化制备了幅宽1000 mm的分离CO2固定载体膜(聚乙烯醇(PVA)/聚乙烯基胺(PVAm)-哌嗪(PIP)/聚砜(PSf)膜),对于水蒸气饱和的CO2/N2混合气,所制膜的CO2渗透速率可达500 GPU,CO2/N2分离因子可达87,对于水蒸气饱和的CO2/CH4混合气,所制膜的CO2渗透速率可达300 GPU,CO2/CH4分离因子可达55,所制膜的CO2/N2和CO2/CH4渗透选择性能远高于商品膜。第二,研制了卷式膜元件制备装置,利用该装置制备了长度为300 mm、膜面积为0.4 m2 的1812膜组件,1812膜组件对CO2/N2和CO2/CH4的渗透选择性能高于商品膜。
 To realize large-scale industrialization application of CO2 separation membranes, an industrialization preparation technology of fixed carrier membranes for CO2 separation was developed, which is including two parts: (1) the development of continuous fabrication device with industrial scale for membranes and the large-scale fabrication of the fixed carrier membranes (polyvinyl alcohol (PVA)/polyvinylamine (PVAm)-(piperazine) PIP /polysulfone (PSf) membrane) with the width of 1000 mm, (2) the development of the fabrication device for spiral-wound membrane elements and the fabrication of spiral-wound membrane modules (1812 membrane module) with the width of 300 mm and the membrane area of 0.4 m2. For CO2/N2 mixed gas saturated with water vapor, CO2 permeance of the membrane can reach 500 GPU, CO2/N2 selectivity can reach 87, for CO2/CH4 mixed gas saturated with water vapor, CO2 permeance of the membrane can reach 300 GPU, CO2/CH4 selectivity can reach 55. CO2/N2 and CO2/CH4 separation performance of the membranes and membrane modules are higher than that of commercial membranes.
 
第一作者:王树清(1965-),男,天津,学士,中级工程师。

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